package com.itheima.test;

public class HashCodeDemo {
    public static void main(String[] args) {
        String s="通话"; //hashcode值 刚好计算相等
        String s1="重地";
        System.out.println(String.format("s:%d|s1:%d ",s.hashCode(),s1.hashCode()));

        long round = Math.round(-1.5);
        System.out.println(round);//-1
    }
}
